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TL431AQDBZRQ1 Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza TL431AQDBZRQ1
Descripción Electrónicos  ADJUSTABLE PRECISION SHUNT REGULATOR
Download  23 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TL431AQDBZRQ1 Datasheet(HTML) 3 Page - Texas Instruments

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TL431-Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302C − MARCH 2005 − REVISED APRIL 2008
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST
TEST CONDITIONS
TL431Q
UNIT
PARAMETER
TEST
CIRCUIT
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vref
Reference voltage
2
VKA = Vref, IKA = 10 mA
2440
2495
2550
mV
VI(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
VKA = Vref, IKA = 10 mA,
TA = −40°C to 125°C
14
34
mV
DV
ref
Ratio of change in reference voltage
3
IKA = 10 mA
∆VKA = 10 V − Vref
−1.4
−2.7
mV
DV
ref
DV
KA
Ratio of change in reference voltage
to the change in cathode voltage
3
IKA = 10 mA
∆VKA = 36 V − 10 V
−1
−2
mV
V
Iref
Reference current
3
IKA = 10 mA, R1 = 10 kΩ, R2 = ∞
2
4
µA
II(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
IKA = 10 mA, R1 = 10 kΩ, R2 = ∞,
TA = −40°C to 125°C
0.8
2.5
µA
Imin
Minimum cathode current for
regulation
2
VKA = Vref
0.4
1
mA
Ioff
Off-state cathode current
4
VKA = 36 V, Vref = 0
0.1
1
µA
|zKA|
Dynamic impedance (see Figure 1)
2
IKA = 1 mA to 100 mA, VKA = Vref,
f
≤ 1 kHz
0.2
0.5
electrical characteristics over recommended operating conditions, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST
TEST CONDITIONS
TL431AQ
UNIT
PARAMETER
TEST
CIRCUIT
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vref
Reference voltage
2
VKA = Vref, IKA = 10 mA
2470
2495
2520
mV
VI(dev)
Deviation of reference voltage
over full temperature range
(see Figure 1)
2
VKA = Vref, IKA = 10 mA,
TA = −40°C to 125°C
14
34
mV
DV
ref
Ratio of change in reference voltage
3
IKA = 10 mA
∆VKA = 10 V − Vref
−1.4
−2.7
mV
DV
ref
DV
KA
Ratio of change in reference voltage
to the change in cathode voltage
3
IKA = 10 mA
∆VKA = 36 V − 10 V
−1
−2
mV
V
Iref
Reference current
3
IKA = 10 mA, R1 = 10 kΩ, R2 = ∞
2
4
µA
II(dev)
Deviation of reference current
over full temperature range
(see Figure 1)
3
IKA = 10 mA, R1 = 10 kΩ, R2 = ∞,
TA = −40°C to 125°C
0.8
2.5
µA
Imin
Minimum cathode current
for regulation
2
VKA = Vref
0.4
0.7
mA
Ioff
Off-state cathode current
4
VKA = 36 V, Vref = 0
0.1
0.5
µA
|zKA|
Dynamic impedance (see Figure 1)
2
IKA = 1 mA to 100 mA, VKA = Vref,
f
≤ 1 kHz
0.2
0.5


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